external coagulant的意思|示意

External Coagulants: Uses and Benefits

External Coagulants are chemicals used in a variety of industries, from pulp and paper to wastewater treatment and food processing. They are used to help create a better product by enhancing its physical characteristics such as color, texture, viscosity, and gelation. External Coagulants are also used to help remove undesirable substances, such as dyes, fats, oils, proteins, and bacteria that can cause product contamination and spoilage.

The most common type of external coagulant is polyacrylamide (PAM). It is a synthetic, water-soluble polymer whose molecules chain together and form large networks. These networks trap and bind particulate material, which is then removed from the solution. It is used to treat a variety of industrial wastewater, such as textile and leather dyeing wastewater, paint or pigment wastewater, and paper and pulp wastewater.

Another type of external coagulant is polyelectrolyte flocculants. These are also synthetic polymers, but they are charged and tend to form strong molecular bonds with suspended particles in aqueous solutions. They are used to help settle and remove suspended particles, such as colloids and particles of different sizes, from a solution. This helps to purify the water or other liquid and make the solution clearer.

External Coagulants are also used in food processing for a variety of purposes. They can be used to improve the texture of food, to remove undesired particles, and to improve the shelf life of food. They are also used to help preserve the color and flavor of food. In addition, they can be used to reduce the need for packaging and extend the shelf life of food.

External Coagulants are important in many industries, as they can be used to improve the quality of the product and reduce the need for costly and time-consuming additional treatments. In addition, they help to reduce environmental impacts and can help to reduce costs associated with wastewater treatment. They are also widely used to improve the efficiency of wastewater treatment plants, allowing them to operate more effectively and reducing the need for additional treatment processes.